BAEL-859 (updated) How to display/list all Spring-managed beans? (#2064)
* Separating displayAllBeans logic from main method * Removing as 'Person' bean is no longer used * Removing as 'Person' bean is no longer used * Removing as 'Person' bean is no longer used * Added FooService and FooController * Changed test cases as per new configuration * Template to handle front-end view * Fixed spacing issue * Fixed spaces * Fixed spacing issue
This commit is contained in:
ramansahasi
maibin
parent
74aa2c9ec9
commit
69b4a05eb8
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@ -11,6 +11,10 @@ public class Application {
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public static void main(String[] args) {
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applicationContext = SpringApplication.run(Application.class, args);
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displayAllBeans();
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}
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public static void displayAllBeans() {
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String[] allBeanNames = applicationContext.getBeanDefinitionNames();
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for(String beanName : allBeanNames) {
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System.out.println(beanName);
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@ -1,19 +0,0 @@
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package com.baeldung.displayallbeans;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.ComponentScan;
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import org.springframework.context.annotation.Configuration;
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import org.springframework.web.servlet.config.annotation.EnableWebMvc;
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import com.baeldung.displayallbeans.model.Person;
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@Configuration
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@ComponentScan(basePackages = "com.baeldung.displayallbeans")
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public class SpringConfig {
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@Bean
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public Person person() {
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Person person = new Person();
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person.setName("Jon Doe");
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return person;
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}
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}
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@ -0,0 +1,22 @@
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package com.baeldung.displayallbeans.controller;
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import java.util.Map;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Controller;
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import org.springframework.web.bind.annotation.RequestMapping;
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import com.baeldung.displayallbeans.service.FooService;
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@Controller
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public class FooController {
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@Autowired
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private FooService fooService;
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@RequestMapping(value="/displayallbeans")
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public String getHeaderAndBody (Map<String, Object> model){
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model.put("header", fooService.getHeader());
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model.put("message", fooService.getBody());
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return "displayallbeans";
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}
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}
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@ -1,19 +0,0 @@
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package com.baeldung.displayallbeans.controller;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Controller;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.ResponseBody;
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import com.baeldung.displayallbeans.model.Person;
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@Controller
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public class PersonController {
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@Autowired
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Person person;
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@RequestMapping("/getPerson")
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public @ResponseBody Person getPerson() {
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return person;
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}
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}
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@ -1,13 +0,0 @@
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package com.baeldung.displayallbeans.model;
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public class Person {
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String name;
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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}
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@ -0,0 +1,18 @@
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package com.baeldung.displayallbeans.service;
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import org.springframework.stereotype.Service;
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@Service
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public class FooService {
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public String getHeader() {
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return "Display All Beans";
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}
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public String getBody() {
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return "This is a sample application that displays all beans "
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+ "in Spring IoC container using ListableBeanFactory interface "
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+ "and Spring Boot Actuators.";
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}
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}
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@ -0,0 +1,10 @@
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
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<title>Baeldung</title>
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</head>
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<body>
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<h2 th:text="${header}"></h2>
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<p th:text="${message}"></p>
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</body>
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</html>
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@ -44,9 +44,8 @@ public class DisplayBeanIntegrationTest {
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@Test
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public void givenRestTemplate_whenAccessServerUrl_thenHttpStatusOK() throws Exception {
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@SuppressWarnings("rawtypes")
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ResponseEntity<Map> entity = this.testRestTemplate.getForEntity(
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"http://localhost:" + this.port + "/getPerson", Map.class);
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ResponseEntity<String> entity = this.testRestTemplate.getForEntity(
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"http://localhost:" + this.port + "/displayallbeans", String.class);
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then(entity.getStatusCode()).isEqualTo(HttpStatus.OK);
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}
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@ -69,8 +68,8 @@ public class DisplayBeanIntegrationTest {
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List<Map<String, Object>> allBeans = (List) ((Map) entity.getBody().get(0)).get("beans");
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List<String> beanNamesList = allBeans.stream().map(x -> (String) x.get("bean")).collect(Collectors.toList());
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assertThat( beanNamesList, hasItem("personController"));
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assertThat( beanNamesList, hasItem("person"));
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assertThat( beanNamesList, hasItem("fooController"));
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assertThat( beanNamesList, hasItem("fooService"));
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}
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@Test
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@ -78,7 +77,7 @@ public class DisplayBeanIntegrationTest {
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String[] beanNames = context.getBeanDefinitionNames();
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List<String> beanNamesList = Arrays.asList(beanNames);
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assertTrue(beanNamesList.contains("personController"));
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assertTrue(beanNamesList.contains("person"));
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assertTrue(beanNamesList.contains("fooController"));
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assertTrue(beanNamesList.contains("fooService"));
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}
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}
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